Return-Path: Delivered-To: craig@sbc-85.com Received: from gator4254.hostgator.com by gator4254.hostgator.com with LMTP id mBzhBbOG2WN3xgcAcizydQ (envelope-from ) for ; Tue, 31 Jan 2023 15:22:59 -0600 Return-path: Envelope-to: craig@sbc-85.com Delivery-date: Tue, 31 Jan 2023 15:22:59 -0600 Received: from mail-wr1-f49.google.com ([209.85.221.49]:46681) by gator4254.hostgator.com with esmtps (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 (Exim 4.95) (envelope-from ) id 1pMy5i-002EP0-6J for craig@sbc-85.com; Tue, 31 Jan 2023 15:22:59 -0600 Received: by mail-wr1-f49.google.com with SMTP id m14so15028210wrg.13 for ; Tue, 31 Jan 2023 13:22:52 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:from:to:cc:subject:date:message-id:reply-to; bh=Z8MJv8bvty8e1xqNGAQQluTUK8i7Ktnj5BGYd5bBVYs=; b=BEVrhYeLX/7kQT/t/o9ts2WZJyBXg1AfsJmk/7xvRT0EaLX9+6+J4c0MrkgpY9K8wR 9nifWC8MfFEMVMxqPPOrkJsYkjbOe5As3t+1w77/M+6AUEIw7DKFf5OkCxqF+T+li06V fIc+PCY2StkOUA2hGRHupLPzMJIAPGeETdb87vVgCG08qHE9I3SY9UHKWDyB/l8l6kSq 2VtNjnLmi7N+/iReNuneMg2SxmM1jo7h7p7/qt7J+auQKW0lzS6FY+mVSFNhcEM7G7kq yk9Gvq9zCxLMFPNqScRrs/QClOBZF2Ou/+UeJUp2kQD7GQ5GvAxgkRkGB4VPJPLsF2S2 9k4w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=Z8MJv8bvty8e1xqNGAQQluTUK8i7Ktnj5BGYd5bBVYs=; b=Vo28l53vKpVoJD4LhZCflvRKnql4d3jV5/USx58yJ9s48vvjLyltgJEqxXz2PhVnud rJhc3i6XqQ8b0+277eh8+nD2U5CXpWK58XDCTLN65HWmNixvM0PBQX+U1NTFrI2NV20m DXIZM9MbVJQLn/9feMqgeplAhgGV018eeg063sdvNRFve+z3+Kii2eCQPoBcEs/mSIfZ VYklW8ITUNcpwMF+A2b5mLfn67rY27KyBSFxCzs4u5ZmeAdR7haP76KafPRcVQ+UbiV4 SjG2HNWBP61hCIvMbbDtvOzFhrA3cwykESAA47L2WkfiPF2hhXeX0hAVKPsx+vyL/Mp1 wePA== X-Gm-Message-State: AO0yUKXnYujMa5iiYK4krFWT+0WMI0MuNgEKeiFLzCRlha7DliKuPa9/ jqgd8s/dVgRhl1ZnQaqsKz9/RB0ASowvHmHy4MQ= X-Google-Smtp-Source: AK7set/qia1H5R7LhEIRX7yaAjx/wBsqOD2zImeLKRw+g/KW4s3acgf79zVCIy4DQve6udHfZwEo4w5UjZPDJv9R1IM= X-Received: by 2002:a05:6000:143:b0:2bf:b7c5:e7c1 with SMTP id r3-20020a056000014300b002bfb7c5e7c1mr21901wrx.24.1675200166280; Tue, 31 Jan 2023 13:22:46 -0800 (PST) MIME-Version: 1.0 References: <06c501d93439$049d7af0$0dd870d0$@sbc-85.com> <55DEEF56EF694997B656A0FC7A83E98C@LM010> In-Reply-To: From: Jon Hales Date: Tue, 31 Jan 2023 21:22:35 +0000 Message-ID: Subject: Re: intellec 8 To: Mattis Lind Cc: Sid Jones , craig@sbc-85.com Content-Type: multipart/alternative; boundary="000000000000d6c17405f395ee38" X-Spam-Status: No, score=-0.2 X-Spam-Score: -1 X-Spam-Bar: / X-Spam-Flag: NO --000000000000d6c17405f395ee38 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Hi Mattis, cc Sid and Craig. I was already familiar with the story about your Intellec 8/80. The story is, as we say, 'the stuff of legends'. It's hard to imagine it would happen these days. In a recent VCF Forum discussion, Herb Johnson mentioned that your Monitor code is version 4.0 and that he and Bill Beech are working on disassembly. The discussion is under 'Pre-Altair' and was started by Roland Huisman some years ago. On the topic of what value we have attached to money at different times, my wife and I bought our first house in UK in 1978. In that year, the same amount of GB Pounds (same as the price of a small house for a family) could have bought a basic-specification MDS Series-II. This comes from a copy of Intel's 1978 price lists. A design for a bus extender would be helpful for anyone dealing with Intellec systems. This is particularly relevant given the Intellec backplane slots have specific functions, so the boards cannot be moved around to allow signals to be probed. I'm aware that S-100 slots have different assignments for the 2 x 50 contacts, but wouldn't an S-100 extender have some potential? I have a third-party (Xentek) Multibus I extender board that was (intended to be) fitted with relays and switches to enable or disable power to the board under test, as well as some multi-LED displays to provide a visual indication of activity - although I should emphasise that I have just the bare board with no documentation and no components with which to populate it. Given the capacity of today's test equipment perhaps it's not of any practical benefit, but I found it interesting to think about the potential of an 'advanced' bus extender. As I mentioned briefly, I have detailed photos of two Intellec 8/80s, access to some documentation including schematic drawings and dumps of EPROMs (from only one 8/80 and in that case held in two 2716s). Would there be any value in my placing these items on my Google Drive for a week or two= ? What I don't have is software for the Intellecs. I have tried to locate the Intel InSite library of routines, but with no success. Enough for now. All the best Jon On Tue, 31 Jan 2023 at 09:26, Mattis Lind wrote: > Hello everyone! > > A short introduction: > > My name is Mattis Lind, I live in Sweden and have an interest in old > computers. My collection of various vintage computers can be seen on > www.datormuseum.se, unfortunately not updated for quite some time. > Almost 30 years ago I bought an Intellec 8/80 on a flea-market in > Stockholm for the equivalent of 10 USD. It has been sitting on the shelf > since then and just recently I thought I should do something about it. My > plan is to connect it to a teletype and perhaps run BASIC or MicroChess > just for fun. > > The Intellec was torn down into pieces and cleaned. Then I started to tes= t > the PSUs. The crowbar of the 5V PSU was set to trip at almost 9V so I > adjusted it down to a more reasonable level. Then I also found that the 5= V > supply itself didn't regulate at all. After some head scratching I > discovered that the driver transistor was leaky. With a new power > transistor in place it regulated fine. I put everything together and trie= d > the machine with boards installed. > > The front panel was acting strangely. Under certain conditions I could > enter data into memory and examine it, but it didn't work as was indicate= d > in the manual. At one point it was possible to single step a one > instruction program that jumped back to itself. I checked the front pane= l > itself. It looked like at least all switches and LEDs were working but it > looked like there was some logic on the front panel controller in the bus > that wasn't doing what it was supposed to. To get access to do > measurements on the board I needed an extender board. > > My idea was to quickly draw one up in KiCAD. I have done quite many > layouts in KiCAD so I wasn't expecting it to take that long. But one > obstacle is to get the proper measurements of the size of boards and > connectors, it takes some time to get this right and it is easy to make > mistakes. > > I did some googling on Intellec and found the interesting pages by Craig. > So I contacted him on the subject of KiCAD layout for the Intellec sized > PCBs. > > So this is the reason for ending up here! > > BTW I also have an Eberhard 1702 programmer and I also had problems with > some 1702 chips. But this is my only 1702 programmer so I cannot compare = it > with others. I thought the EPROM was marginal. > > > /Mattis > > > Den m=C3=A5n 30 jan. 2023 kl 14:15 skrev Sid Jones < > jonesthechip@logicmagic.co.uk>: > >> Thanks for the email, Jon. >> >> My intellec 4 mod 40 (S/N 027!) is getting a ground up refurbishment, du= e >> to having dropped off a shelf a decade or two ago... >> >> I=E2=80=99m building a high-speed tape reader simulator and I really fan= cy a >> crack at a home-brew 1702A programmer. >> >> (Stealing from the best, of course...) >> >> What I=E2=80=99m really missing is the paper tape RAM based assembler th= at came >> with the box. Should have kept a copy of the tape when I left college! >> >> Regarding the MDS systems, I=E2=80=99ve got a MDS-800 box, no terminal, = no floppy >> drives, but I do have a Series III and a white Series II that I was goin= g >> to use for spares. With drives. >> >> And a stack of floppies =E2=80=98obtained=E2=80=99 from various clients.= And the odd >> intel manual or three.. >> >> Perhaps it=E2=80=99ll be time for a visit to sunny Cambridge sometime so= on? >> >> And how do I join the Google group, please? These new-fangled =E2=80=98s= ocial >> media=E2=80=99 malarkey can get past me... >> >> Regards >> >> Sid >> >> PS 70th birthday present (to myself) pictured! Rockwell Echo cancelling >> chip with Star Trek =E2=80=98Enterprise=E2=80=99 in the layers! Geek cre= d squared! >> >> >> >> *From:* Jon Hales >> *Sent:* Monday, January 30, 2023 11:32 AM >> *To:* Sid Jones >> *Cc:* craig@sbc-85.com ; Mattis Lind >> *Subject:* Re: intellec 8 >> >> Hi Sid, copied to Mattis and Craig >> >> Many thanks for your message. You are in a fortunate position to have a >> 4/40. >> >> I was planning to write to you and Mattis, copied to Craig, to explain >> (briefly) where I'm coming from. >> >> About ten years ago I was looking for a 386 CPU and found an eBay seller >> in UK offering an Intel Multibus board containing a 386 and 387 for abou= t >> the amount I had expected to pay for the CPU. Fast forward to about 2020= , >> when I bought a 386 board from Northwest Technical, which came with a se= t >> of original ROMs and a copy of the manual. I was able to get the origin= al >> board working by copying the ROMs. Along the way I had collected several >> Intel Model 310 86/286 systems running Xenix and iRMX-86. >> >> I realise that Mattis was even more fortunate in buying a Intellec 8/80 >> for about the amount I paid for the 386 board. >> >> Around seven years ago I started volunteering at the Centre for Computin= g >> History in Cambridge (developing an archive of magnetic media, which no-= one >> else seemed interested in preserving; I live near Cambridge). The museum >> already had an Intellec 8/80. I collected another 8/80 from a donor who = had >> stored a quantity of Intel development systems after they were scrapped = by >> his employer. This gave me an opportunity to partially dismantle it (for >> cleaning and inspection) and photograph the boards and PSUs before it we= nt >> to the museum. More recently, I photographed the boards and chassis of t= he >> museum's 8/80 to copy the images to Craig. The PROM board had been adapt= ed >> to 2716s. >> >> The Cambridge museum has a fully-operational Apple 1 reproduction. A >> friend of the museum populated the board with period-correct chips as we= ll >> as the PSU and adding a tape interface. I donated a Hitachi mono monitor= to >> provide a display. This is a permanent exhibit, alongside an Altair 8800= , >> an 8800b and an Imsai 8080. Unlike the Intellec 8/80s, although they hav= e >> (at least) comparable historical significance, which remain in storage. >> This is the background to propose an Intellec 8/80 reproduction system f= or >> the museum. >> >> Craig's initiative is an opportunity not-to-be-missed to acquire the >> basis of a reproduction Intellec. As a 'data specialist', my understandi= ng >> of electronics is basic. However, I have had a good deal of success at >> building up useful systems from bare boards. I would be ready to organis= e >> orders from JLCPCB, with which I have an account. >> >> Craig and I have been in contact for some time via an 'email group' >> called Intel Devsys on Google Groups. This developed from the efforts of >> Bill Beech, Richard Main and Herb Johnson (and others) to support effort= s >> to get MDS systems working. There are now some members of the group in U= K. >> I have contributed disk images, based partly on the museum's collection, >> and scans of various Intel documents. Mark Ogden (ogdenpm on Github) has >> done much to organise the collection of software and manuals. Although t= he >> emphasis has been mainly on Series II MDS systems, it would appear a goo= d >> approach to suggest you both join this group. As well as providing suppo= rt >> to each other, the group has been successful at bringing together >> information on Bill Beech's Google Drive. >> >> Sid: I know someone who built himself a Martin Eberhard programmer for >> 1702s. I could put you in touch with him if you want an easy way to get >> code into these chips. (I know, it would be better to do this via an >> Intellec or a iUP-103 Universal Programmer with the appropriate interfac= e - >> I have an iUP-103, but it's only equipped for 2716s). >> >> Best regards >> >> Jon >> >> On Mon, 30 Jan 2023 at 10:34, Sid Jones >> wrote: >> >>> Thanks for the update! >>> >>> FYI: I=E2=80=99m refurbishing an intel intellec 4/40 that I used in col= lege >>> between 1974-1977. >>> >>> And the mission creep sets in, so I have to build a RS232-20 mA current >>> loop interface and a 1702A EPROM programmer. >>> >>> Use a 2372A board with flying leads to drop into the ROM monitor socket= , >>> to get over the bit rot in the original 1702A devices until I can progr= amme >>> some more!. >>> >>> BTW: I have a source of 1702A =E2=80=98new, old stock=E2=80=99 EPROMs i= n Sweden. A nice >>> gentleman called Bjorn Lundin has a stash of 500+ !!! >>> >>> This will be after the case has been cleaned, de-bent and repainted. >>> Small accident in the 1990=E2=80=99s involving a weak shelf and gravity= ... >>> >>> I do have a spare set of 4040/4289(?) and 4201 devices from the uni >>> project and after being inspired by Craig=E2=80=99s work, I=E2=80=99m g= iving some thought >>> to a =E2=80=98new=E2=80=99 CPU board for the 4040. >>> >>> Replace the 4x1702A with a 2732A, modern logic rather than the electron >>> guzzling 3205 and other devices, socket everything and make a new drop-= in >>> board for my intel box. >>> >>> Madness, or what? >>> >>> Regards >>> >>> Sid >>> >>> *From:* craig@sbc-85.com >>> *Sent:* Sunday, January 29, 2023 11:25 PM >>> *To:* 'Jon Hales' ; 'Mattis Lind' >>> ; 'Sid Jones' >>> *Subject:* intellec 8 >>> >>> >>> Hi Jon, Mattis, & Sid >>> >>> >>> >>> I am not sure you are all aware of each other yet=E2=80=A6 but I think = everyone >>> has some level of interest in making one or more of the reproduction bo= ards >>> for the intellect and, since you are somewhat close together, it may ma= ke >>> sense to order boards directly from the board house and redistribute >>> amongst yourselves. Sid and Jon are in the UK, Mattis is in Sweden=E2= =80=94two of >>> my favorite countries to visit by the way. >>> >>> >>> >>> As for the boards, I have been distracted lately but hope to get back t= o >>> get them fully tested. the PROM, RAM, Motherboard, and 8008 CPU all lo= ok >>> OK, I need to build and test the 8080 CPU and a simple card extender >>> board. I haven=E2=80=99t even started a front panel board or either of= the I/O >>> boards and have no intention yet to make the eprom programming board. = I >>> expect the remaining boards may continue to drag out, or maybe someone = else >>> will decide to make them before me. >>> >>> >>> >>> If Sid and Mattis have not joined the intel development google group, >>> that remains to be the most centralized and deepest well of information= . >>> >>> >>> >>> regards to all, >>> >>> >>> >>> craig >>> >> --000000000000d6c17405f395ee38 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Hi Mattis, cc Sid and Craig.

I was alre= ady familiar with the story about your Intellec 8/80. The story is, as we s= ay, 'the stuff of legends'. It's hard to imagine it would happe= n these days. In a recent VCF Forum discussion, Herb Johnson mentioned that= your Monitor code is version 4.0 and that he and Bill Beech are working on= disassembly. The discussion is under 'Pre-Altair' and was started = by Roland Huisman some years ago.

On the topic of = what value we have attached to money at different times, my wife and I boug= ht our first house in UK in 1978. In that year, the same amount of GB Pound= s (same as the price of a small house for a family) could have bought a bas= ic-specification MDS Series-II. This comes from a copy of Intel's 1978 = price lists.

A design for a bus extender would be = helpful for anyone dealing with Intellec systems. This is particularly rele= vant given the Intellec backplane slots have specific functions, so the boa= rds cannot be moved around to allow signals to be probed. I'm aware tha= t S-100 slots have different assignments for the 2 x 50 contacts, but would= n't an S-100 extender have some potential?

I h= ave a third-party (Xentek) Multibus I extender board that was (intended to = be) fitted with relays and switches to enable or disable power to the board= under test, as well as some multi-LED displays to provide a visual indicat= ion of activity - although I should emphasise that I have just the bare boa= rd with no documentation and no components with which to populate it. Given= the capacity of today's test equipment perhaps it's not of any pra= ctical benefit, but I found it interesting to think about the potential of = an 'advanced' bus extender.

As I mentioned= briefly, I have detailed photos of two Intellec 8/80s, access to some docu= mentation including schematic drawings and dumps of EPROMs (from only one 8= /80 and in that case held in two 2716s). Would there be any value in my pla= cing these items on my Google Drive for a week or two?

=
What I don't have is software for the Intellecs. I have tried to l= ocate the Intel InSite library of routines, but with no success.=C2=A0

Enough for now.

All the best<= /div>

Jon

On Tue, 31 Jan 2023 at 09:26, Mattis Lind= <mattislind@gmail.com> w= rote:
Hello everyone!

A short introduction:

My name is Mattis Lind, I live in Sweden and have an intere= st in old computers. My collection of various vintage computers can be seen= on www.datormuseum= .se, unfortunately not updated for quite some time.
Almost 30= years ago I bought an Intellec=C2=A08/80 on a flea-market in Stockholm for= the equivalent=C2=A0of 10 USD. It has been sitting on the shelf since then= and just recently I thought I should do something about it. My plan is to = connect it to a teletype and perhaps run BASIC or MicroChess just for fun.= =C2=A0

The Intellec was torn down into pieces and = cleaned. Then I started to test the PSUs. The crowbar=C2=A0of the 5V PSU wa= s set to trip at almost 9V so I adjusted it down to a more reasonable level= . Then I also found that the 5V supply itself didn't regulate at all. A= fter some head scratching I discovered that the driver transistor was leaky= . With a new power transistor in place it regulated fine. I put everything = together and tried the machine with boards installed.=C2=A0

<= /div>
The front panel was acting strangely. Under certain conditions I = could enter data into memory and examine it, but it didn't work as was = indicated in the manual. At one point it was possible to single step a one = instruction program that jumped back to itself. I checked the front=C2=A0 p= anel itself. It looked like at least all switches and LEDs were working but= it looked like there was some logic on the front panel controller in the b= us that wasn't doing what it was supposed to. To get access to do measu= rements=C2=A0on the=C2=A0 board I needed an extender board.=C2=A0

My idea was to quickly draw one up in KiCAD. I have done qu= ite many layouts in KiCAD so I wasn't expecting it to take that long. B= ut one obstacle is to get the proper measurements of the size of boards and= connectors, it takes some time to get this right and it is easy to make mi= stakes.

I did some googling on Intellec and found = the interesting pages by Craig. So I contacted him on the subject of KiCAD = layout for the Intellec sized PCBs.

So this is the= reason for ending up here!

BTW I also have an Ebe= rhard 1702 programmer and I also had problems with some 1702 chips. But thi= s is my only 1702 programmer so I cannot compare it with others. I thought = the EPROM was marginal.


/Mattis


Den m=C3=A5n 30 jan. 2023 kl 14:15 skrev Sid Jones <jonesthechi= p@logicmagic.co.uk>:
Thanks for the email, Jon.
=C2=A0
My intellec 4 mod 40 (S/N 027!) is getting a ground up refurbishment, = due=20 to having dropped off a shelf a decade or two ago...
=C2=A0
I=E2=80=99m building a high-speed tape reader simulator and I really f= ancy a crack=20 at a home-brew 1702A programmer.
=C2=A0
(Stealing from the best, of course...)
=C2=A0
What I=E2=80=99m really missing is the paper tape RAM based assembler = that came=20 with the box. Should have kept a copy of the tape when I left college!
=C2=A0
Regarding the MDS systems, I=E2=80=99ve got a MDS-800 box, no terminal= , no floppy=20 drives, but I do have a Series III and a white Series II that I was going t= o use=20 for spares. With drives.
=C2=A0
And a stack of floppies =E2=80=98obtained=E2=80=99 from various client= s. And the odd intel=20 manual or three..
=C2=A0
Perhaps it=E2=80=99ll be time for a visit to sunny Cambridge sometime = soon?
=C2=A0
And how do I join the Google group, please? These new-fangled =E2=80= =98social=20 media=E2=80=99 malarkey can get past me...
=C2=A0
Regards
=C2=A0
Sid
=C2=A0
PS 70th birthday present (to myself) pictured! Rockwell Echo cancellin= g=20 chip with Star Trek =E2=80=98Enterprise=E2=80=99 in the layers! Geek cred s= quared!
=C2=A0
=C2=A0
=C2=A0
From: Jon Hales
Sent: Monday, January 30, 2023 11:32 AM
Subject: Re: intellec 8
=C2=A0
Hi Sid, copied to Mattis and Craig=20
=C2=A0
Many thanks for your message. You are in a fortunate position to have = a=20 4/40.
=C2=A0
I was planning to write to you and Mattis, copied to Craig, to explain= =20 (briefly) where I'm coming from.
=C2=A0
About ten years ago I was looking for a 386 CPU and found an eBay sell= er in=20 UK offering an Intel Multibus board containing a 386 and 387 for about the= =20 amount I had expected to pay for the CPU. Fast forward to about 2020, when = I=20 bought a 386 board from Northwest Technical, which came with a set of=20 original=C2=A0 ROMs and a copy of the manual. I was able to get the origina= l=20 board working by copying the ROMs. Along the way I had collected several In= tel=20 Model 310 86/286 systems running Xenix and iRMX-86.
=C2=A0
I realise that Mattis was even more fortunate in buying a Intellec 8/8= 0 for=20 about the amount I paid for the 386 board.
=C2=A0
Around seven years ago I started volunteering at the Centre for Comput= ing=20 History in Cambridge (developing an archive of magnetic media, which no-one= else=20 seemed interested in preserving; I live near Cambridge). The museum already= had=20 an Intellec 8/80. I collected another 8/80 from a donor who had stored a=20 quantity of Intel development systems after they were scrapped by his emplo= yer.=20 This gave me an opportunity to partially dismantle it (for cleaning and=20 inspection) and photograph the boards and PSUs before it went to the museum= .=20 More recently, I photographed the boards and chassis of the museum's 8/= 80 to=20 copy the images to Craig. The PROM board had been adapted to 2716s.
=C2=A0
The Cambridge museum has a fully-operational Apple 1 reproduction. A f= riend=20 of the museum populated the board with period-correct chips as well as the = PSU=20 and adding a tape interface. I donated a Hitachi mono monitor to provide a= =20 display. This is a permanent exhibit, alongside an Altair 8800, an 8800b an= d an=20 Imsai 8080. Unlike the Intellec 8/80s, although they have (at least) compar= able=20 historical significance, which remain in storage. This is the background to= =20 propose an Intellec 8/80 reproduction system for the museum.
=C2=A0
Craig's initiative is an opportunity not-to-be-missed to acquire t= he basis=20 of a reproduction Intellec. As a 'data specialist', my understandin= g of=20 electronics is basic. However, I have had a good deal of success at buildin= g up=20 useful systems from bare boards. I would be ready to organise orders from= =20 JLCPCB, with which I have an account.
=C2=A0
Craig and I have been in contact for some time via an 'email group= ' called=20 Intel Devsys on Google Groups. This developed from the efforts of Bill Beec= h,=20 Richard Main and Herb Johnson (and others) to support efforts to get MDS sy= stems=20 working. There are now some members of the group in UK. I have contributed = disk=20 images, based partly on the museum's collection, and scans of various I= ntel=20 documents. Mark Ogden (ogdenpm on Github) has done much to organise the=20 collection of software and manuals. Although the emphasis has been mainly o= n=20 Series II MDS systems, it would appear a good approach to suggest you both = join=20 this group. As well as providing support to each other, the group has been= =20 successful at bringing together information on Bill Beech's Google Driv= e.
=C2=A0
Sid: I know someone who built himself a Martin Eberhard programmer for= =20 1702s. I could put you in touch with him if you want an easy way to get cod= e=20 into these chips. (I know, it would be better to do this via an Intellec or= a=20 iUP-103 Universal Programmer with the appropriate interface - I have an iUP= -103,=20 but it's only equipped for 2716s).
=C2=A0
Best regards
=C2=A0
Jon
=C2=A0
On Mon, 30 Jan 2023 at 10:34, Sid Jon= es <j= onesthechip@logicmagic.co.uk> wrote:
Thanks for the update!
=C2=A0
FYI: I=E2=80=99m refurbishing an intel intellec 4/40 that I used in = college=20 between 1974-1977.
=C2=A0
And the mission creep sets in, so I have to build a RS232-20 mA curr= ent=20 loop interface and a 1702A EPROM programmer.
=C2=A0
Use a 2372A board with flying leads to drop into the ROM monitor soc= ket,=20 to get over the bit rot in the original 1702A devices until I can program= me=20 some more!.
=C2=A0
BTW: I have a source of 1702A =E2=80=98new, old stock=E2=80=99 EPROM= s in Sweden. A nice=20 gentleman called Bjorn Lundin has a stash of 500+ !!!
=C2=A0
This will be after the case has been cleaned, de-bent and repainted.= =20 Small accident in the 1990=E2=80=99s involving a weak shelf and gravity..= .
=C2=A0
I do have a spare set of 4040/4289(?) and 4201 devices from the uni= =20 project and after being inspired by Craig=E2=80=99s work, I=E2=80=99m giv= ing some thought to a=20 =E2=80=98new=E2=80=99 CPU board for the 4040.
=C2=A0
Replace the 4x1702A with a 2732A, modern logic rather than the elect= ron=20 guzzling 3205 and other devices, socket everything and make a new drop-in= =20 board for my intel box.
=C2=A0
Madness, or what?
=C2=A0
Regards
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Sid
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Sent: Sunday, January 29, 2023 11:25 PM
Subject: intellec 8
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Hi Jon, Mattis, & Sid

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I am not sure you are all aware of each other yet= =E2=80=A6 but I=20 think everyone has some level of interest in making one or more of the=20 reproduction boards for the intellect and, since you are somewhat close= =20 together, it may make sense to order boards directly from the board house= and=20 redistribute amongst yourselves.=C2=A0 Sid and Jon are in the UK, Mattis = is in=20 Sweden=E2=80=94two of my favorite countries to visit by the way.

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As for the boards, I have been distracted lately b= ut hope=20 to get back to get them fully tested.=C2=A0 the PROM, RAM, Motherboard, a= nd=20 8008 CPU all look OK, I need to build and test the 8080 CPU and a simple = card=20 extender board.=C2=A0 I haven=E2=80=99t even started a front panel board = or either of=20 the I/O boards and have no intention yet to make the eprom programming=20 board.=C2=A0 I expect the remaining boards may continue to drag out, or m= aybe=20 someone else will decide to make them before me.

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If Sid and Mattis have not joined the intel develo= pment=20 google group, that remains to be the most centralized and deepest well of= =20 information.

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regards to all,

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craig

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